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<a href="a00701.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/* ========================================================================= *</span></div><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment"> *                                                                           *</span></div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> *                               OpenMesh                                    *</span></div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> *           Copyright (c) 2001-2015, RWTH-Aachen University                 *</span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> *           Department of Computer Graphics and Multimedia                  *</span></div><div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"> *                          All rights reserved.                             *</span></div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"> *                            www.openmesh.org                               *</span></div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"> *                                                                           *</span></div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment"> *---------------------------------------------------------------------------*</span></div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment"> * This file is part of OpenMesh.                                            *</span></div><div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment"> *---------------------------------------------------------------------------*</span></div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment"> *                                                                           *</span></div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment"> * Redistribution and use in source and binary forms, with or without        *</span></div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment"> * modification, are permitted provided that the following conditions        *</span></div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment"> * are met:                                                                  *</span></div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment"> *                                                                           *</span></div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="comment"> * 1. Redistributions of source code must retain the above copyright notice, *</span></div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="comment"> *    this list of conditions and the following disclaimer.                  *</span></div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="comment"> *                                                                           *</span></div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="comment"> * 2. Redistributions in binary form must reproduce the above copyright      *</span></div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="comment"> *    notice, this list of conditions and the following disclaimer in the    *</span></div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="comment"> *    documentation and/or other materials provided with the distribution.   *</span></div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="comment"> *                                                                           *</span></div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="comment"> * 3. Neither the name of the copyright holder nor the names of its          *</span></div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="comment"> *    contributors may be used to endorse or promote products derived from   *</span></div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="comment"> *    this software without specific prior written permission.               *</span></div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="comment"> *                                                                           *</span></div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="comment"> * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS       *</span></div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="comment"> * &quot;AS IS&quot; AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED *</span></div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="comment"> * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A           *</span></div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;<span class="comment"> * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER *</span></div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="comment"> * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,  *</span></div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;<span class="comment"> * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,       *</span></div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;<span class="comment"> * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR        *</span></div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;<span class="comment"> * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF    *</span></div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;<span class="comment"> * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING      *</span></div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="comment"> * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS        *</span></div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;<span class="comment"> * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.              *</span></div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;<span class="comment"> *                                                                           *</span></div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;<span class="comment"> * ========================================================================= */</span></div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;</div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;</div><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;</div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;<span class="comment">//=============================================================================</span></div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;<span class="comment">//  CLASS LoopT</span></div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;<span class="comment">//=============================================================================</span></div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;</div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;<span class="preprocessor">#ifndef OPENMESH_SUBDIVIDER_UNIFORM_LOOPT_HH</span></div><div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;<span class="preprocessor">#define OPENMESH_SUBDIVIDER_UNIFORM_LOOPT_HH</span></div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;</div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;</div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;<span class="comment">//== INCLUDES =================================================================</span></div><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;</div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;<span class="preprocessor">#include &lt;OpenMesh/Core/System/config.hh&gt;</span></div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;<span class="preprocessor">#include &lt;<a class="code" href="a00716.html">OpenMesh/Tools/Subdivider/Uniform/SubdividerT.hh</a>&gt;</span></div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;<span class="preprocessor">#include &lt;OpenMesh/Core/Utils/vector_cast.hh&gt;</span></div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;<span class="preprocessor">#include &lt;OpenMesh/Core/Utils/Property.hh&gt;</span></div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;<span class="comment">// -------------------- STL</span></div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;<span class="preprocessor">#include &lt;vector&gt;</span></div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;<span class="preprocessor">#if defined(OM_CC_MIPS)</span></div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;<span class="preprocessor">#  include &lt;math.h&gt;</span></div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;<span class="preprocessor">#else</span></div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;<span class="preprocessor">#  include &lt;cmath&gt;</span></div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;</div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;</div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;<span class="comment">//== NAMESPACE ================================================================</span></div><div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;</div><div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;<span class="keyword">namespace </span><a class="code" href="a01233.html">OpenMesh</a>   { <span class="comment">// BEGIN_NS_OPENMESH</span></div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;<span class="keyword">namespace </span>Subdivider { <span class="comment">// BEGIN_NS_DECIMATER</span></div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;<span class="keyword">namespace </span>Uniform    { <span class="comment">// BEGIN_NS_DECIMATER</span></div><div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;</div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;</div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;<span class="comment">//== CLASS DEFINITION =========================================================</span></div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;</div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> MeshType, <span class="keyword">typename</span> RealType = <span class="keywordtype">double</span>&gt;</div><div class="line"><a name="l00091"></a><span class="lineno"><a class="line" href="a03029.html">   91</a></span>&#160;<span class="keyword">class </span><a class="code" href="a03029.html">LoopT</a> : <span class="keyword">public</span> <a class="code" href="a03057.html">SubdividerT</a>&lt;MeshType, RealType&gt;</div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;{</div><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;<span class="keyword">public</span>:</div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;</div><div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;  <span class="keyword">typedef</span> RealType                                real_t;</div><div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;  <span class="keyword">typedef</span> MeshType                                mesh_t;</div><div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;  <span class="keyword">typedef</span> <a class="code" href="a03057.html">SubdividerT&lt; mesh_t, real_t &gt;</a>           <a class="code" href="a03057.html">parent_t</a>;</div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;</div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;  <span class="keyword">typedef</span> std::pair&lt; real_t, real_t &gt;             weight_t;</div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;  <span class="keyword">typedef</span> std::vector&lt; std::pair&lt;real_t,real_t&gt; &gt; weights_t;</div><div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;</div><div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;<span class="keyword">public</span>:</div><div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;</div><div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;</div><div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;  <a class="code" href="a03029.html">LoopT</a>(<span class="keywordtype">void</span>) : parent_t(), _1over8( 1.0/8.0 ), _3over8( 3.0/8.0 )</div><div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;  { <a class="code" href="a03029.html#ab51fd2e6ad14e5572fdc2955ac89aab9">init_weights</a>(); }</div><div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;</div><div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;</div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;  <span class="keyword">explicit</span> <a class="code" href="a03029.html">LoopT</a>( mesh_t&amp; _m ) : parent_t(_m), _1over8( 1.0/8.0 ), _3over8( 3.0/8.0 )</div><div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;  { <a class="code" href="a03029.html#ab51fd2e6ad14e5572fdc2955ac89aab9">init_weights</a>(); }</div><div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;</div><div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;</div><div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;  ~<a class="code" href="a03029.html">LoopT</a>() {}</div><div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;</div><div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;</div><div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;<span class="keyword">public</span>:</div><div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;</div><div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;</div><div class="line"><a name="l00119"></a><span class="lineno"><a class="line" href="a03029.html#a79f3444bbaa77e670176162ce1216527">  119</a></span>&#160;  <span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code" href="a03029.html#a79f3444bbaa77e670176162ce1216527">name</a>()<span class="keyword"> const override </span>{ <span class="keywordflow">return</span> <span class="stringliteral">&quot;Uniform Loop&quot;</span>; }</div><div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;</div><div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;</div><div class="line"><a name="l00123"></a><span class="lineno"><a class="line" href="a03029.html#ab51fd2e6ad14e5572fdc2955ac89aab9">  123</a></span>&#160;  <span class="keywordtype">void</span> <a class="code" href="a03029.html#ab51fd2e6ad14e5572fdc2955ac89aab9">init_weights</a>(<span class="keywordtype">size_t</span> _max_valence=50)</div><div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;  {</div><div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;    weights_.resize(_max_valence);</div><div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;    std::generate(weights_.begin(), weights_.end(), compute_weight());</div><div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;  }</div><div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;</div><div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;</div><div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;<span class="keyword">protected</span>:</div><div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;</div><div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;</div><div class="line"><a name="l00133"></a><span class="lineno"><a class="line" href="a03029.html#ad0eb94e38c4476e2c877bb399b4cf59d">  133</a></span>&#160;  <span class="keywordtype">bool</span> <a class="code" href="a03029.html#ad0eb94e38c4476e2c877bb399b4cf59d">prepare</a>( mesh_t&amp; _m )<span class="keyword"> override</span></div><div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;<span class="keyword">  </span>{</div><div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;    _m.add_property( vp_pos_ );</div><div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;    _m.add_property( ep_pos_ );</div><div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;    <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;  }</div><div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;</div><div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;</div><div class="line"><a name="l00141"></a><span class="lineno"><a class="line" href="a03029.html#a12842704ee107a1cd92603709c9d5908">  141</a></span>&#160;  <span class="keywordtype">bool</span> <a class="code" href="a03029.html#a12842704ee107a1cd92603709c9d5908">cleanup</a>( mesh_t&amp; _m )<span class="keyword"> override</span></div><div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;<span class="keyword">  </span>{</div><div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;    _m.remove_property( vp_pos_ );</div><div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;    _m.remove_property( ep_pos_ );</div><div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;    <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;  }</div><div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;</div><div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;</div><div class="line"><a name="l00149"></a><span class="lineno"><a class="line" href="a03029.html#af811a514d9e562f946cecbdb9259fbd0">  149</a></span>&#160;  <span class="keywordtype">bool</span> <a class="code" href="a03029.html#af811a514d9e562f946cecbdb9259fbd0">subdivide</a>( mesh_t&amp; _m, <span class="keywordtype">size_t</span> _n, <span class="keyword">const</span> <span class="keywordtype">bool</span> _update_points = <span class="keyword">true</span>)<span class="keyword"> override</span></div><div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;<span class="keyword">  </span>{</div><div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;</div><div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;</div><div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;    <span class="keyword">typename</span> mesh_t::FaceIter   fit, f_end;</div><div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;    <span class="keyword">typename</span> mesh_t::EdgeIter   eit, e_end;</div><div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;    <span class="keyword">typename</span> mesh_t::VertexIter vit;</div><div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;</div><div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;    <span class="comment">// Do _n subdivisions</span></div><div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;    <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i=0; i &lt; _n; ++i)</div><div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;    {</div><div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;</div><div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;      <span class="keywordflow">if</span>(_update_points) {</div><div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;        <span class="comment">// compute new positions for old vertices</span></div><div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;        <span class="keywordflow">for</span> (vit = _m.vertices_begin(); vit != _m.vertices_end(); ++vit) {</div><div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;          smooth(_m, *vit);</div><div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;        }</div><div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;      }</div><div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;</div><div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;      <span class="comment">// Compute position for new vertices and store them in the edge property</span></div><div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;      <span class="keywordflow">for</span> (eit=_m.edges_begin(); eit != _m.edges_end(); ++eit)</div><div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;        compute_midpoint( _m, *eit );</div><div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;</div><div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;      <span class="comment">// Split each edge at midpoint and store precomputed positions (stored in</span></div><div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;      <span class="comment">// edge property ep_pos_) in the vertex property vp_pos_;</span></div><div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;</div><div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;      <span class="comment">// Attention! Creating new edges, hence make sure the loop ends correctly.</span></div><div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;      <span class="keywordflow">for</span> (<span class="keyword">auto</span> eh : _m.edges())</div><div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;        split_edge(_m, eh );</div><div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;</div><div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;</div><div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;      <span class="comment">// Commit changes in topology and reconsitute consistency</span></div><div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;</div><div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;      <span class="comment">// Attention! Creating new faces, hence make sure the loop ends correctly.</span></div><div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;      <span class="keywordflow">for</span> (<span class="keyword">auto</span> fh : _m.faces())</div><div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;        split_face(_m, fh );</div><div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;</div><div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160;      <span class="keywordflow">if</span>(_update_points) {</div><div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;        <span class="comment">// Commit changes in geometry</span></div><div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;        <span class="keywordflow">for</span> ( vit  = _m.vertices_begin();</div><div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;            vit != _m.vertices_end(); ++vit) {</div><div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;            _m.set_point(*vit, _m.property( vp_pos_, *vit ) );</div><div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;        }</div><div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;      }</div><div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;</div><div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;</div><div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;<span class="preprocessor">#if defined(_DEBUG) || defined(DEBUG)</span></div><div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;      <span class="comment">// Now we have an consistent mesh!</span></div><div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;      assert( <a class="code" href="a03077.html">OpenMesh::Utils::MeshCheckerT&lt;mesh_t&gt;</a>(_m).check() );</div><div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;    }</div><div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;</div><div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;    <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;  }</div><div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;</div><div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;<span class="keyword">private</span>:</div><div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;</div><div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;  <span class="keyword">struct </span>compute_weight</div><div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;  {</div><div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;    compute_weight() : valence(-1) { }</div><div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;    weight_t <a class="code" href="a03057.html#a2c3bb164d974ac4bcc9217a8368a7484">operator() </a>(<span class="keywordtype">void</span>)</div><div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;    {</div><div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;<span class="preprocessor">#if !defined(OM_CC_MIPS)</span></div><div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;      <span class="keyword">using</span> std::cos;</div><div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;      <span class="comment">//              1</span></div><div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;      <span class="comment">// alpha(n) = ---- * (40 - ( 3 + 2 cos( 2 Pi / n ) )� )</span></div><div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160;      <span class="comment">//             64</span></div><div class="line"><a name="l00220"></a><span class="lineno">  220</span>&#160;</div><div class="line"><a name="l00221"></a><span class="lineno">  221</span>&#160;      <span class="keywordflow">if</span> (++valence)</div><div class="line"><a name="l00222"></a><span class="lineno">  222</span>&#160;      {</div><div class="line"><a name="l00223"></a><span class="lineno">  223</span>&#160;        <span class="keywordtype">double</span>   inv_v  = 1.0/double(valence);</div><div class="line"><a name="l00224"></a><span class="lineno">  224</span>&#160;        <span class="keywordtype">double</span>   t      = (3.0 + 2.0 * cos( 2.0 * M_PI * inv_v) );</div><div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160;        <span class="keywordtype">double</span>   alpha  = (40.0 - t * t)/64.0;</div><div class="line"><a name="l00226"></a><span class="lineno">  226</span>&#160;</div><div class="line"><a name="l00227"></a><span class="lineno">  227</span>&#160;        <span class="keywordflow">return</span> weight_t( static_cast&lt;real_t&gt;(1.0-alpha), static_cast&lt;real_t&gt;(inv_v*alpha) );</div><div class="line"><a name="l00228"></a><span class="lineno">  228</span>&#160;      }</div><div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160;      <span class="keywordflow">return</span> weight_t(static_cast&lt;real_t&gt;(0.0), static_cast&lt;real_t&gt;(0.0));</div><div class="line"><a name="l00230"></a><span class="lineno">  230</span>&#160;    }</div><div class="line"><a name="l00231"></a><span class="lineno">  231</span>&#160;    <span class="keywordtype">int</span> valence;</div><div class="line"><a name="l00232"></a><span class="lineno">  232</span>&#160;  };</div><div class="line"><a name="l00233"></a><span class="lineno">  233</span>&#160;</div><div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160;<span class="keyword">private</span>: <span class="comment">// topological modifiers</span></div><div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160;</div><div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160;  <span class="keywordtype">void</span> split_face(mesh_t&amp; _m, <span class="keyword">const</span> <span class="keyword">typename</span> mesh_t::FaceHandle&amp; _fh)</div><div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160;  {</div><div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;    <span class="keyword">typename</span> mesh_t::HalfedgeHandle</div><div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160;      heh1(_m.halfedge_handle(_fh)),</div><div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;      heh2(_m.next_halfedge_handle(_m.next_halfedge_handle(heh1))),</div><div class="line"><a name="l00241"></a><span class="lineno">  241</span>&#160;      heh3(_m.next_halfedge_handle(_m.next_halfedge_handle(heh2)));</div><div class="line"><a name="l00242"></a><span class="lineno">  242</span>&#160;</div><div class="line"><a name="l00243"></a><span class="lineno">  243</span>&#160;    <span class="comment">// Cutting off every corner of the 6_gon</span></div><div class="line"><a name="l00244"></a><span class="lineno">  244</span>&#160;    corner_cutting( _m, heh1 );</div><div class="line"><a name="l00245"></a><span class="lineno">  245</span>&#160;    corner_cutting( _m, heh2 );</div><div class="line"><a name="l00246"></a><span class="lineno">  246</span>&#160;    corner_cutting( _m, heh3 );</div><div class="line"><a name="l00247"></a><span class="lineno">  247</span>&#160;  }</div><div class="line"><a name="l00248"></a><span class="lineno">  248</span>&#160;</div><div class="line"><a name="l00249"></a><span class="lineno">  249</span>&#160;</div><div class="line"><a name="l00250"></a><span class="lineno">  250</span>&#160;  <span class="keywordtype">void</span> corner_cutting(mesh_t&amp; _m, <span class="keyword">const</span> <span class="keyword">typename</span> mesh_t::HalfedgeHandle&amp; _he)</div><div class="line"><a name="l00251"></a><span class="lineno">  251</span>&#160;  {</div><div class="line"><a name="l00252"></a><span class="lineno">  252</span>&#160;    <span class="comment">// Define Halfedge Handles</span></div><div class="line"><a name="l00253"></a><span class="lineno">  253</span>&#160;    <span class="keyword">typename</span> mesh_t::HalfedgeHandle</div><div class="line"><a name="l00254"></a><span class="lineno">  254</span>&#160;      heh1(_he),</div><div class="line"><a name="l00255"></a><span class="lineno">  255</span>&#160;      heh5(heh1),</div><div class="line"><a name="l00256"></a><span class="lineno">  256</span>&#160;      heh6(_m.next_halfedge_handle(heh1));</div><div class="line"><a name="l00257"></a><span class="lineno">  257</span>&#160;</div><div class="line"><a name="l00258"></a><span class="lineno">  258</span>&#160;    <span class="comment">// Cycle around the polygon to find correct Halfedge</span></div><div class="line"><a name="l00259"></a><span class="lineno">  259</span>&#160;    <span class="keywordflow">for</span> (; _m.next_halfedge_handle(_m.next_halfedge_handle(heh5)) != heh1;</div><div class="line"><a name="l00260"></a><span class="lineno">  260</span>&#160;         heh5 = _m.next_halfedge_handle(heh5))</div><div class="line"><a name="l00261"></a><span class="lineno">  261</span>&#160;    {}</div><div class="line"><a name="l00262"></a><span class="lineno">  262</span>&#160;</div><div class="line"><a name="l00263"></a><span class="lineno">  263</span>&#160;    <span class="keyword">typename</span> <a class="code" href="a02389.html#a0fc18e13d70825938274e3faf7b55e01">mesh_t::VertexHandle</a></div><div class="line"><a name="l00264"></a><span class="lineno">  264</span>&#160;      vh1 = _m.to_vertex_handle(heh1),</div><div class="line"><a name="l00265"></a><span class="lineno">  265</span>&#160;      vh2 = _m.to_vertex_handle(heh5);</div><div class="line"><a name="l00266"></a><span class="lineno">  266</span>&#160;</div><div class="line"><a name="l00267"></a><span class="lineno">  267</span>&#160;    <span class="keyword">typename</span> mesh_t::HalfedgeHandle</div><div class="line"><a name="l00268"></a><span class="lineno">  268</span>&#160;      heh2(_m.next_halfedge_handle(heh5)),</div><div class="line"><a name="l00269"></a><span class="lineno">  269</span>&#160;      heh3(_m.new_edge( vh1, vh2)),</div><div class="line"><a name="l00270"></a><span class="lineno">  270</span>&#160;      heh4(_m.opposite_halfedge_handle(heh3));</div><div class="line"><a name="l00271"></a><span class="lineno">  271</span>&#160;</div><div class="line"><a name="l00272"></a><span class="lineno">  272</span>&#160;    <span class="comment">/* Intermediate result</span></div><div class="line"><a name="l00273"></a><span class="lineno">  273</span>&#160;<span class="comment">     *</span></div><div class="line"><a name="l00274"></a><span class="lineno">  274</span>&#160;<span class="comment">     *            *</span></div><div class="line"><a name="l00275"></a><span class="lineno">  275</span>&#160;<span class="comment">     *         5 /|\</span></div><div class="line"><a name="l00276"></a><span class="lineno">  276</span>&#160;<span class="comment">     *          /_  \</span></div><div class="line"><a name="l00277"></a><span class="lineno">  277</span>&#160;<span class="comment">     *    vh2&gt; *     *</span></div><div class="line"><a name="l00278"></a><span class="lineno">  278</span>&#160;<span class="comment">     *        /|\3   |\</span></div><div class="line"><a name="l00279"></a><span class="lineno">  279</span>&#160;<span class="comment">     *       /_  \|4   \</span></div><div class="line"><a name="l00280"></a><span class="lineno">  280</span>&#160;<span class="comment">     *      *----\*----\*</span></div><div class="line"><a name="l00281"></a><span class="lineno">  281</span>&#160;<span class="comment">     *          1 ^   6</span></div><div class="line"><a name="l00282"></a><span class="lineno">  282</span>&#160;<span class="comment">     *            vh1 (adjust_outgoing halfedge!)</span></div><div class="line"><a name="l00283"></a><span class="lineno">  283</span>&#160;<span class="comment">     */</span></div><div class="line"><a name="l00284"></a><span class="lineno">  284</span>&#160;</div><div class="line"><a name="l00285"></a><span class="lineno">  285</span>&#160;    <span class="comment">// Old and new Face</span></div><div class="line"><a name="l00286"></a><span class="lineno">  286</span>&#160;    <span class="keyword">typename</span> mesh_t::FaceHandle     fh_old(_m.face_handle(heh6));</div><div class="line"><a name="l00287"></a><span class="lineno">  287</span>&#160;    <span class="keyword">typename</span> mesh_t::FaceHandle     fh_new(_m.new_face());</div><div class="line"><a name="l00288"></a><span class="lineno">  288</span>&#160;</div><div class="line"><a name="l00289"></a><span class="lineno">  289</span>&#160;</div><div class="line"><a name="l00290"></a><span class="lineno">  290</span>&#160;    <span class="comment">// Re-Set Handles around old Face</span></div><div class="line"><a name="l00291"></a><span class="lineno">  291</span>&#160;    _m.set_next_halfedge_handle(heh4, heh6);</div><div class="line"><a name="l00292"></a><span class="lineno">  292</span>&#160;    _m.set_next_halfedge_handle(heh5, heh4);</div><div class="line"><a name="l00293"></a><span class="lineno">  293</span>&#160;</div><div class="line"><a name="l00294"></a><span class="lineno">  294</span>&#160;    _m.set_face_handle(heh4, fh_old);</div><div class="line"><a name="l00295"></a><span class="lineno">  295</span>&#160;    _m.set_face_handle(heh5, fh_old);</div><div class="line"><a name="l00296"></a><span class="lineno">  296</span>&#160;    _m.set_face_handle(heh6, fh_old);</div><div class="line"><a name="l00297"></a><span class="lineno">  297</span>&#160;    _m.set_halfedge_handle(fh_old, heh4);</div><div class="line"><a name="l00298"></a><span class="lineno">  298</span>&#160;</div><div class="line"><a name="l00299"></a><span class="lineno">  299</span>&#160;    <span class="comment">// Re-Set Handles around new Face</span></div><div class="line"><a name="l00300"></a><span class="lineno">  300</span>&#160;    _m.set_next_halfedge_handle(heh1, heh3);</div><div class="line"><a name="l00301"></a><span class="lineno">  301</span>&#160;    _m.set_next_halfedge_handle(heh3, heh2);</div><div class="line"><a name="l00302"></a><span class="lineno">  302</span>&#160;</div><div class="line"><a name="l00303"></a><span class="lineno">  303</span>&#160;    _m.set_face_handle(heh1, fh_new);</div><div class="line"><a name="l00304"></a><span class="lineno">  304</span>&#160;    _m.set_face_handle(heh2, fh_new);</div><div class="line"><a name="l00305"></a><span class="lineno">  305</span>&#160;    _m.set_face_handle(heh3, fh_new);</div><div class="line"><a name="l00306"></a><span class="lineno">  306</span>&#160;</div><div class="line"><a name="l00307"></a><span class="lineno">  307</span>&#160;    _m.set_halfedge_handle(fh_new, heh1);</div><div class="line"><a name="l00308"></a><span class="lineno">  308</span>&#160;  }</div><div class="line"><a name="l00309"></a><span class="lineno">  309</span>&#160;</div><div class="line"><a name="l00310"></a><span class="lineno">  310</span>&#160;</div><div class="line"><a name="l00311"></a><span class="lineno">  311</span>&#160;  <span class="keywordtype">void</span> split_edge(mesh_t&amp; _m, <span class="keyword">const</span> <span class="keyword">typename</span> mesh_t::EdgeHandle&amp; _eh)</div><div class="line"><a name="l00312"></a><span class="lineno">  312</span>&#160;  {</div><div class="line"><a name="l00313"></a><span class="lineno">  313</span>&#160;    <span class="keyword">typename</span> mesh_t::HalfedgeHandle</div><div class="line"><a name="l00314"></a><span class="lineno">  314</span>&#160;      heh     = _m.halfedge_handle(_eh, 0),</div><div class="line"><a name="l00315"></a><span class="lineno">  315</span>&#160;      opp_heh = _m.halfedge_handle(_eh, 1);</div><div class="line"><a name="l00316"></a><span class="lineno">  316</span>&#160;</div><div class="line"><a name="l00317"></a><span class="lineno">  317</span>&#160;    <span class="keyword">typename</span> mesh_t::HalfedgeHandle new_heh, opp_new_heh, t_heh;</div><div class="line"><a name="l00318"></a><span class="lineno">  318</span>&#160;    <span class="keyword">typename</span> <a class="code" href="a02389.html#a0fc18e13d70825938274e3faf7b55e01">mesh_t::VertexHandle</a>   vh;</div><div class="line"><a name="l00319"></a><span class="lineno">  319</span>&#160;    <span class="keyword">typename</span> <a class="code" href="a02389.html#a0fc18e13d70825938274e3faf7b55e01">mesh_t::VertexHandle</a>   vh1(_m.to_vertex_handle(heh));</div><div class="line"><a name="l00320"></a><span class="lineno">  320</span>&#160;    <span class="keyword">typename</span> <a class="code" href="a02389.html#aed10fb4dfb536b53a5e20c8f2442eadf">mesh_t::Point</a>          midP(_m.point(_m.to_vertex_handle(heh)));</div><div class="line"><a name="l00321"></a><span class="lineno">  321</span>&#160;    midP += _m.point(_m.to_vertex_handle(opp_heh));</div><div class="line"><a name="l00322"></a><span class="lineno">  322</span>&#160;    midP *= <span class="keyword">static_cast&lt;</span>RealType<span class="keyword">&gt;</span>(0.5);</div><div class="line"><a name="l00323"></a><span class="lineno">  323</span>&#160;</div><div class="line"><a name="l00324"></a><span class="lineno">  324</span>&#160;    <span class="comment">// new vertex</span></div><div class="line"><a name="l00325"></a><span class="lineno">  325</span>&#160;    vh                = _m.new_vertex( midP );</div><div class="line"><a name="l00326"></a><span class="lineno">  326</span>&#160;</div><div class="line"><a name="l00327"></a><span class="lineno">  327</span>&#160;    <span class="comment">// memorize position, will be set later</span></div><div class="line"><a name="l00328"></a><span class="lineno">  328</span>&#160;    _m.property( vp_pos_, vh ) = _m.property( ep_pos_, _eh );</div><div class="line"><a name="l00329"></a><span class="lineno">  329</span>&#160;</div><div class="line"><a name="l00330"></a><span class="lineno">  330</span>&#160;</div><div class="line"><a name="l00331"></a><span class="lineno">  331</span>&#160;    <span class="comment">// Re-link mesh entities</span></div><div class="line"><a name="l00332"></a><span class="lineno">  332</span>&#160;    <span class="keywordflow">if</span> (_m.is_boundary(_eh))</div><div class="line"><a name="l00333"></a><span class="lineno">  333</span>&#160;    {</div><div class="line"><a name="l00334"></a><span class="lineno">  334</span>&#160;      <span class="keywordflow">for</span> (t_heh = heh;</div><div class="line"><a name="l00335"></a><span class="lineno">  335</span>&#160;           _m.next_halfedge_handle(t_heh) != opp_heh;</div><div class="line"><a name="l00336"></a><span class="lineno">  336</span>&#160;           t_heh = _m.opposite_halfedge_handle(_m.next_halfedge_handle(t_heh)))</div><div class="line"><a name="l00337"></a><span class="lineno">  337</span>&#160;      {}</div><div class="line"><a name="l00338"></a><span class="lineno">  338</span>&#160;    }</div><div class="line"><a name="l00339"></a><span class="lineno">  339</span>&#160;    <span class="keywordflow">else</span></div><div class="line"><a name="l00340"></a><span class="lineno">  340</span>&#160;    {</div><div class="line"><a name="l00341"></a><span class="lineno">  341</span>&#160;      <span class="keywordflow">for</span> (t_heh = _m.next_halfedge_handle(opp_heh);</div><div class="line"><a name="l00342"></a><span class="lineno">  342</span>&#160;           _m.next_halfedge_handle(t_heh) != opp_heh;</div><div class="line"><a name="l00343"></a><span class="lineno">  343</span>&#160;           t_heh = _m.next_halfedge_handle(t_heh) )</div><div class="line"><a name="l00344"></a><span class="lineno">  344</span>&#160;      {}</div><div class="line"><a name="l00345"></a><span class="lineno">  345</span>&#160;    }</div><div class="line"><a name="l00346"></a><span class="lineno">  346</span>&#160;</div><div class="line"><a name="l00347"></a><span class="lineno">  347</span>&#160;    new_heh     = _m.new_edge(vh, vh1);</div><div class="line"><a name="l00348"></a><span class="lineno">  348</span>&#160;    opp_new_heh = _m.opposite_halfedge_handle(new_heh);</div><div class="line"><a name="l00349"></a><span class="lineno">  349</span>&#160;    _m.set_vertex_handle( heh, vh );</div><div class="line"><a name="l00350"></a><span class="lineno">  350</span>&#160;</div><div class="line"><a name="l00351"></a><span class="lineno">  351</span>&#160;    _m.set_next_halfedge_handle(t_heh, opp_new_heh);</div><div class="line"><a name="l00352"></a><span class="lineno">  352</span>&#160;    _m.set_next_halfedge_handle(new_heh, _m.next_halfedge_handle(heh));</div><div class="line"><a name="l00353"></a><span class="lineno">  353</span>&#160;    _m.set_next_halfedge_handle(heh, new_heh);</div><div class="line"><a name="l00354"></a><span class="lineno">  354</span>&#160;    _m.set_next_halfedge_handle(opp_new_heh, opp_heh);</div><div class="line"><a name="l00355"></a><span class="lineno">  355</span>&#160;</div><div class="line"><a name="l00356"></a><span class="lineno">  356</span>&#160;    <span class="keywordflow">if</span> (_m.face_handle(opp_heh).is_valid())</div><div class="line"><a name="l00357"></a><span class="lineno">  357</span>&#160;    {</div><div class="line"><a name="l00358"></a><span class="lineno">  358</span>&#160;      _m.set_face_handle(opp_new_heh, _m.face_handle(opp_heh));</div><div class="line"><a name="l00359"></a><span class="lineno">  359</span>&#160;      _m.set_halfedge_handle(_m.face_handle(opp_new_heh), opp_new_heh);</div><div class="line"><a name="l00360"></a><span class="lineno">  360</span>&#160;    }</div><div class="line"><a name="l00361"></a><span class="lineno">  361</span>&#160;</div><div class="line"><a name="l00362"></a><span class="lineno">  362</span>&#160;    _m.set_face_handle( new_heh, _m.face_handle(heh) );</div><div class="line"><a name="l00363"></a><span class="lineno">  363</span>&#160;    _m.set_halfedge_handle( vh, new_heh);</div><div class="line"><a name="l00364"></a><span class="lineno">  364</span>&#160;</div><div class="line"><a name="l00365"></a><span class="lineno">  365</span>&#160;    <span class="comment">// We cant reconnect a non existing face, so we skip this here if necessary</span></div><div class="line"><a name="l00366"></a><span class="lineno">  366</span>&#160;    <span class="keywordflow">if</span> ( !_m.is_boundary(heh) )</div><div class="line"><a name="l00367"></a><span class="lineno">  367</span>&#160;      _m.set_halfedge_handle( _m.face_handle(heh), heh );</div><div class="line"><a name="l00368"></a><span class="lineno">  368</span>&#160;</div><div class="line"><a name="l00369"></a><span class="lineno">  369</span>&#160;    _m.set_halfedge_handle( vh1, opp_new_heh );</div><div class="line"><a name="l00370"></a><span class="lineno">  370</span>&#160;</div><div class="line"><a name="l00371"></a><span class="lineno">  371</span>&#160;    <span class="comment">// Never forget this, when playing with the topology</span></div><div class="line"><a name="l00372"></a><span class="lineno">  372</span>&#160;    _m.adjust_outgoing_halfedge( vh );</div><div class="line"><a name="l00373"></a><span class="lineno">  373</span>&#160;    _m.adjust_outgoing_halfedge( vh1 );</div><div class="line"><a name="l00374"></a><span class="lineno">  374</span>&#160;  }</div><div class="line"><a name="l00375"></a><span class="lineno">  375</span>&#160;</div><div class="line"><a name="l00376"></a><span class="lineno">  376</span>&#160;<span class="keyword">private</span>: <span class="comment">// geometry helper</span></div><div class="line"><a name="l00377"></a><span class="lineno">  377</span>&#160;</div><div class="line"><a name="l00378"></a><span class="lineno">  378</span>&#160;  <span class="keywordtype">void</span> compute_midpoint(mesh_t&amp; _m, <span class="keyword">const</span> <span class="keyword">typename</span> mesh_t::EdgeHandle&amp; _eh)</div><div class="line"><a name="l00379"></a><span class="lineno">  379</span>&#160;  {</div><div class="line"><a name="l00380"></a><span class="lineno">  380</span>&#160;<span class="preprocessor">#define V( X ) vector_cast&lt; typename mesh_t::Normal &gt;( X )</span></div><div class="line"><a name="l00381"></a><span class="lineno">  381</span>&#160;    <span class="keyword">typename</span> mesh_t::HalfedgeHandle heh, opp_heh;</div><div class="line"><a name="l00382"></a><span class="lineno">  382</span>&#160;</div><div class="line"><a name="l00383"></a><span class="lineno">  383</span>&#160;    heh      = _m.halfedge_handle( _eh, 0);</div><div class="line"><a name="l00384"></a><span class="lineno">  384</span>&#160;    opp_heh  = _m.halfedge_handle( _eh, 1);</div><div class="line"><a name="l00385"></a><span class="lineno">  385</span>&#160;</div><div class="line"><a name="l00386"></a><span class="lineno">  386</span>&#160;    <span class="keyword">typename</span> <a class="code" href="a02389.html#aed10fb4dfb536b53a5e20c8f2442eadf">mesh_t::Point</a></div><div class="line"><a name="l00387"></a><span class="lineno">  387</span>&#160;      pos(_m.point(_m.to_vertex_handle(heh)));</div><div class="line"><a name="l00388"></a><span class="lineno">  388</span>&#160;</div><div class="line"><a name="l00389"></a><span class="lineno">  389</span>&#160;    pos += V( _m.point(_m.to_vertex_handle(opp_heh)) );</div><div class="line"><a name="l00390"></a><span class="lineno">  390</span>&#160;</div><div class="line"><a name="l00391"></a><span class="lineno">  391</span>&#160;    <span class="comment">// boundary edge: just average vertex positions</span></div><div class="line"><a name="l00392"></a><span class="lineno">  392</span>&#160;    <span class="keywordflow">if</span> (_m.is_boundary(_eh) )</div><div class="line"><a name="l00393"></a><span class="lineno">  393</span>&#160;    {</div><div class="line"><a name="l00394"></a><span class="lineno">  394</span>&#160;      pos *= <span class="keyword">static_cast&lt;</span>RealType<span class="keyword">&gt;</span>(0.5);</div><div class="line"><a name="l00395"></a><span class="lineno">  395</span>&#160;    }</div><div class="line"><a name="l00396"></a><span class="lineno">  396</span>&#160;    <span class="keywordflow">else</span> <span class="comment">// inner edge: add neighbouring Vertices to sum</span></div><div class="line"><a name="l00397"></a><span class="lineno">  397</span>&#160;    {</div><div class="line"><a name="l00398"></a><span class="lineno">  398</span>&#160;      pos *= real_t(3.0);</div><div class="line"><a name="l00399"></a><span class="lineno">  399</span>&#160;      pos += V(_m.point(_m.to_vertex_handle(_m.next_halfedge_handle(heh))));</div><div class="line"><a name="l00400"></a><span class="lineno">  400</span>&#160;      pos += V(_m.point(_m.to_vertex_handle(_m.next_halfedge_handle(opp_heh))));</div><div class="line"><a name="l00401"></a><span class="lineno">  401</span>&#160;      pos *= _1over8;</div><div class="line"><a name="l00402"></a><span class="lineno">  402</span>&#160;    }</div><div class="line"><a name="l00403"></a><span class="lineno">  403</span>&#160;    _m.property( ep_pos_, _eh ) = pos;</div><div class="line"><a name="l00404"></a><span class="lineno">  404</span>&#160;<span class="preprocessor">#undef V</span></div><div class="line"><a name="l00405"></a><span class="lineno">  405</span>&#160;  }</div><div class="line"><a name="l00406"></a><span class="lineno">  406</span>&#160;</div><div class="line"><a name="l00407"></a><span class="lineno">  407</span>&#160; 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       <span class="keyword">typename</span> <a class="code" href="a02389.html#a0fc18e13d70825938274e3faf7b55e01">mesh_t::VertexHandle</a></div><div class="line"><a name="l00423"></a><span class="lineno">  423</span>&#160;          to_vh   = _m.to_vertex_handle( heh ),</div><div class="line"><a name="l00424"></a><span class="lineno">  424</span>&#160;          from_vh = _m.from_vertex_handle( prev_heh );</div><div class="line"><a name="l00425"></a><span class="lineno">  425</span>&#160;</div><div class="line"><a name="l00426"></a><span class="lineno">  426</span>&#160;        <span class="comment">// ( v_l + 6 v + v_r ) / 8</span></div><div class="line"><a name="l00427"></a><span class="lineno">  427</span>&#160;        pos  = _m.point( _vh );</div><div class="line"><a name="l00428"></a><span class="lineno">  428</span>&#160;        pos *= real_t(6.0);</div><div class="line"><a name="l00429"></a><span class="lineno">  429</span>&#160;        pos += <a class="code" href="a01233.html#a6bd9c6555d30f75e4de638b1c782ad42">vector_cast</a>&lt; <span class="keyword">typename</span> <a class="code" href="a02389.html#a3570fd132d1ac589b380485cf59c9e0b">mesh_t::Normal</a> &gt;( _m.point( to_vh ) );</div><div class="line"><a name="l00430"></a><span class="lineno">  430</span>&#160;        pos += <a class="code" href="a01233.html#a6bd9c6555d30f75e4de638b1c782ad42">vector_cast</a>&lt; <span class="keyword">typename</span> <a class="code" href="a02389.html#a3570fd132d1ac589b380485cf59c9e0b">mesh_t::Normal</a> &gt;( _m.point( from_vh ) );</div><div class="line"><a name="l00431"></a><span class="lineno">  431</span>&#160;        pos *= _1over8;</div><div class="line"><a name="l00432"></a><span class="lineno">  432</span>&#160;</div><div class="line"><a name="l00433"></a><span class="lineno">  433</span>&#160;      }</div><div class="line"><a name="l00434"></a><span class="lineno">  434</span>&#160;      <span class="keywordflow">else</span></div><div class="line"><a name="l00435"></a><span class="lineno">  435</span>&#160;        <span class="keywordflow">return</span>;</div><div class="line"><a name="l00436"></a><span class="lineno">  436</span>&#160; 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     <span class="comment">// Calculate Valence and sum up neighbour points</span></div><div class="line"><a name="l00444"></a><span class="lineno">  444</span>&#160;      <span class="keywordflow">for</span> (vvit=_m.vv_iter(_vh); vvit.is_valid(); ++vvit) {</div><div class="line"><a name="l00445"></a><span class="lineno">  445</span>&#160;        ++valence;</div><div class="line"><a name="l00446"></a><span class="lineno">  446</span>&#160;        pos += <a class="code" href="a01233.html#a6bd9c6555d30f75e4de638b1c782ad42">vector_cast</a>&lt; Vec &gt;( _m.point(*vvit) );</div><div class="line"><a name="l00447"></a><span class="lineno">  447</span>&#160;      }</div><div class="line"><a name="l00448"></a><span class="lineno">  448</span>&#160;      pos *= weights_[valence].second; <span class="comment">// alpha(n)/n * Sum q, q in one-ring of p</span></div><div class="line"><a name="l00449"></a><span class="lineno">  449</span>&#160;      pos += weights_[valence].first</div><div class="line"><a name="l00450"></a><span class="lineno">  450</span>&#160;          * <a class="code" href="a01233.html#a6bd9c6555d30f75e4de638b1c782ad42">vector_cast</a>&lt;Vec&gt;(_m.point(_vh)); <span class="comment">// + (1-a)*p</span></div><div class="line"><a name="l00451"></a><span class="lineno">  451</span>&#160;    }</div><div class="line"><a name="l00452"></a><span class="lineno">  452</span>&#160;</div><div class="line"><a name="l00453"></a><span class="lineno">  453</span>&#160;    _m.property( vp_pos_, _vh ) = pos;</div><div class="line"><a name="l00454"></a><span class="lineno">  454</span>&#160;  }</div><div class="line"><a name="l00455"></a><span class="lineno">  455</span>&#160;</div><div class="line"><a name="l00456"></a><span class="lineno">  456</span>&#160;<span class="keyword">private</span>: <span class="comment">// data</span></div><div class="line"><a name="l00457"></a><span class="lineno">  457</span>&#160;</div><div class="line"><a name="l00458"></a><span class="lineno">  458</span>&#160;  <a class="code" href="a02553.html">OpenMesh::VPropHandleT&lt; typename mesh_t::Point &gt;</a> vp_pos_;</div><div class="line"><a name="l00459"></a><span class="lineno">  459</span>&#160;  <a class="code" href="a02561.html">OpenMesh::EPropHandleT&lt; typename mesh_t::Point &gt;</a> ep_pos_;</div><div class="line"><a name="l00460"></a><span class="lineno">  460</span>&#160;</div><div class="line"><a name="l00461"></a><span class="lineno">  461</span>&#160;  weights_t     weights_;</div><div class="line"><a name="l00462"></a><span class="lineno">  462</span>&#160;</div><div class="line"><a name="l00463"></a><span class="lineno">  463</span>&#160;  <span class="keyword">const</span> real_t _1over8;</div><div class="line"><a name="l00464"></a><span class="lineno">  464</span>&#160;  <span class="keyword">const</span> real_t _3over8;</div><div class="line"><a name="l00465"></a><span class="lineno">  465</span>&#160;</div><div class="line"><a name="l00466"></a><span class="lineno">  466</span>&#160;};</div><div class="line"><a name="l00467"></a><span class="lineno">  467</span>&#160;</div><div class="line"><a name="l00468"></a><span class="lineno">  468</span>&#160;</div><div class="line"><a name="l00469"></a><span class="lineno">  469</span>&#160;<span class="comment">//=============================================================================</span></div><div class="line"><a name="l00470"></a><span class="lineno">  470</span>&#160;} <span class="comment">// END_NS_UNIFORM</span></div><div class="line"><a name="l00471"></a><span class="lineno">  471</span>&#160;} <span class="comment">// END_NS_SUBDIVIDER</span></div><div class="line"><a name="l00472"></a><span class="lineno">  472</span>&#160;} <span class="comment">// END_NS_OPENMESH</span></div><div class="line"><a name="l00473"></a><span class="lineno">  473</span>&#160;<span class="comment">//=============================================================================</span></div><div class="line"><a name="l00474"></a><span class="lineno">  474</span>&#160;<span class="preprocessor">#endif // OPENMESH_SUBDIVIDER_UNIFORM_COMPOSITELOOPT_HH defined</span></div><div class="line"><a name="l00475"></a><span class="lineno">  475</span>&#160;<span class="comment">//=============================================================================</span></div><div class="ttc" id="a01233_html_a6bd9c6555d30f75e4de638b1c782ad42"><div class="ttname"><a href="a01233.html#a6bd9c6555d30f75e4de638b1c782ad42">OpenMesh::vector_cast</a></div><div class="ttdeci">void vector_cast(const src_t &amp;_src, dst_t &amp;_dst, GenProg::Int2Type&lt; n &gt;)</div><div class="ttdoc">Cast vector type to another vector type by copying the vector elements. </div><div class="ttdef"><b>Definition:</b> vector_cast.hh:81</div></div>
<div class="ttc" id="a02553_html"><div class="ttname"><a href="a02553.html">OpenMesh::VPropHandleT&lt; typename mesh_t::Point &gt;</a></div></div>
<div class="ttc" id="a03029_html_af811a514d9e562f946cecbdb9259fbd0"><div class="ttname"><a href="a03029.html#af811a514d9e562f946cecbdb9259fbd0">OpenMesh::Subdivider::Uniform::LoopT::subdivide</a></div><div class="ttdeci">bool subdivide(mesh_t &amp;_m, size_t _n, const bool _update_points=true) override</div><div class="ttdoc">Subdivide mesh _m _n times. </div><div class="ttdef"><b>Definition:</b> LoopT.hh:149</div></div>
<div class="ttc" id="a03029_html_ab51fd2e6ad14e5572fdc2955ac89aab9"><div class="ttname"><a href="a03029.html#ab51fd2e6ad14e5572fdc2955ac89aab9">OpenMesh::Subdivider::Uniform::LoopT::init_weights</a></div><div class="ttdeci">void init_weights(size_t _max_valence=50)</div><div class="ttdoc">Pre-compute weights. </div><div class="ttdef"><b>Definition:</b> LoopT.hh:123</div></div>
<div class="ttc" id="a02389_html_adc7d422e2ce13141e8291f7d29f7ecef"><div class="ttname"><a href="a02389.html#adc7d422e2ce13141e8291f7d29f7ecef">OpenMesh::PolyMeshT::VertexVertexIter</a></div><div class="ttdeci">Kernel::VertexVertexIter VertexVertexIter</div><div class="ttdoc">Circulator. </div><div class="ttdef"><b>Definition:</b> PolyMeshT.hh:162</div></div>
<div class="ttc" id="a03057_html_a2c3bb164d974ac4bcc9217a8368a7484"><div class="ttname"><a href="a03057.html#a2c3bb164d974ac4bcc9217a8368a7484">OpenMesh::Subdivider::Uniform::SubdividerT::operator()</a></div><div class="ttdeci">bool operator()(MeshType &amp;_m, size_t _n, const bool _update_points=true)</div><div class="ttdoc">Subdivide the mesh _m _n times. </div><div class="ttdef"><b>Definition:</b> SubdividerT.hh:122</div></div>
<div class="ttc" id="a02389_html_a3570fd132d1ac589b380485cf59c9e0b"><div class="ttname"><a href="a02389.html#a3570fd132d1ac589b380485cf59c9e0b">OpenMesh::PolyMeshT::Normal</a></div><div class="ttdeci">Kernel::Normal Normal</div><div class="ttdoc">Normal type. </div><div class="ttdef"><b>Definition:</b> PolyMeshT.hh:114</div></div>
<div class="ttc" id="a03029_html_a12842704ee107a1cd92603709c9d5908"><div class="ttname"><a href="a03029.html#a12842704ee107a1cd92603709c9d5908">OpenMesh::Subdivider::Uniform::LoopT::cleanup</a></div><div class="ttdeci">bool cleanup(mesh_t &amp;_m) override</div><div class="ttdoc">Cleanup mesh after usage, e.g. remove added properties. </div><div class="ttdef"><b>Definition:</b> LoopT.hh:141</div></div>
<div class="ttc" id="a03029_html"><div class="ttname"><a href="a03029.html">OpenMesh::Subdivider::Uniform::LoopT</a></div><div class="ttdoc">Uniform Loop subdivision algorithm. </div><div class="ttdef"><b>Definition:</b> LoopT.hh:91</div></div>
<div class="ttc" id="a02561_html"><div class="ttname"><a href="a02561.html">OpenMesh::EPropHandleT&lt; typename mesh_t::Point &gt;</a></div></div>
<div class="ttc" id="a03029_html_a79f3444bbaa77e670176162ce1216527"><div class="ttname"><a href="a03029.html#a79f3444bbaa77e670176162ce1216527">OpenMesh::Subdivider::Uniform::LoopT::name</a></div><div class="ttdeci">const char * name() const override</div><div class="ttdoc">Return name of subdivision algorithm. </div><div class="ttdef"><b>Definition:</b> LoopT.hh:119</div></div>
<div class="ttc" id="a03057_html"><div class="ttname"><a href="a03057.html">OpenMesh::Subdivider::Uniform::SubdividerT</a></div><div class="ttdoc">Abstract base class for uniform subdivision algorithms. </div><div class="ttdef"><b>Definition:</b> SubdividerT.hh:88</div></div>
<div class="ttc" id="a03029_html_ad0eb94e38c4476e2c877bb399b4cf59d"><div class="ttname"><a href="a03029.html#ad0eb94e38c4476e2c877bb399b4cf59d">OpenMesh::Subdivider::Uniform::LoopT::prepare</a></div><div class="ttdeci">bool prepare(mesh_t &amp;_m) override</div><div class="ttdoc">Prepare mesh, e.g. add properties. </div><div class="ttdef"><b>Definition:</b> LoopT.hh:133</div></div>
<div class="ttc" id="a02389_html_aed10fb4dfb536b53a5e20c8f2442eadf"><div class="ttname"><a href="a02389.html#aed10fb4dfb536b53a5e20c8f2442eadf">OpenMesh::PolyMeshT::Point</a></div><div class="ttdeci">Kernel::Point Point</div><div class="ttdoc">Coordinate type. </div><div class="ttdef"><b>Definition:</b> PolyMeshT.hh:112</div></div>
<div class="ttc" id="a03077_html"><div class="ttname"><a href="a03077.html">OpenMesh::Utils::MeshCheckerT</a></div><div class="ttdoc">Check integrity of mesh. </div><div class="ttdef"><b>Definition:</b> MeshCheckerT.hh:73</div></div>
<div class="ttc" id="a00716_html"><div class="ttname"><a href="a00716.html">SubdividerT.hh</a></div></div>
<div class="ttc" id="a01233_html"><div class="ttname"><a href="a01233.html">OpenMesh</a></div><div class="ttdoc">Contains all the mesh ingredients like the polygonal mesh, the triangle mesh, different mesh kernels ...</div><div class="ttdef"><b>Definition:</b> MeshItems.hh:59</div></div>
<div class="ttc" id="a02389_html_a0fc18e13d70825938274e3faf7b55e01"><div class="ttname"><a href="a02389.html#a0fc18e13d70825938274e3faf7b55e01">OpenMesh::PolyMeshT::VertexHandle</a></div><div class="ttdeci">Kernel::VertexHandle VertexHandle</div><div class="ttdoc">Handle for referencing the corresponding item. </div><div class="ttdef"><b>Definition:</b> PolyMeshT.hh:136</div></div>
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